The use of live maggots (Lucilia sericata) derived from pig manure in the cage culture of African catfish (Clarias gariepinus) | |
| Author | Sam, Nuov |
| Call Number | AIT Thesis no. AE-93-29 |
| Subject(s) | Fishes--Feeding and feeds Catfishes |
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | An experiment on maggot growing with five levels of crude protein contents in pig manure (5 treatments) was carried out with 10 replications each, The effect of pigfeed quality on pig manure quality and effect of pig manure quality on maggot growing, residual manure quantity and quality were found. There was a strong linear correlation between %N in pigfeed with %N in pig manure and between %N in pig manure and YON in residual manure (r =0.87) after maggot growing. There were no significant differences between manure quantity and maggot quantity , manure quality and maggot quantity, and manure quality and maggot quality, Pig manure treatment 4, containing medium nitrogen (3.15%N, dry weight basis) , gave optimal maggot production. Pig manure treatment I containing the highest nitrogen component of 3.62%N (dry weight basis) gave the best maggot quality (7 .65%N) . But the least quality, pigs fed low quality diet produced large amounts of manure and maggot which were of high quality (crude protein: 44.81%) and manure treatment 5 containing the lowest nitrogen content (1.50%N) , A feeding experiment using African catfish (Clarias gariepinus) in which Iive maggot and/or a floating pelleted feed were given to catfish raised in cages suspended in one pond, For 8 weeks, the effects of diet treatments on growth rate, survival rate and product ion were investigated. Catfish fingerlings (average weight 5 to 7 g) were stocked in 15 cages (Ixlxl 2m) at a density of 250 fish per cage. Five treatment diets (Tl 100% maggot, T2 75% maggot + 25% pellet, '113 50% maggot + 50% pellet , T4 : 25% maggot + 75% pellet and T5 100% pellet ) , were made with three replications for each. In different cages catfish were fed with the same amount of 21 g protein per kg fish per day, three times per day, every day, Fish production results showed no significant relationship between fish growth parameters: final weight, final length, percentage weight gain (PWG) daily weight gain (DWG) , specific growth rate (SGR) with the levels percentage of maggot in different diets treatment. There were no significant relationship between feed utilization parameters : the protein efficiency ratio (PER), apparent net protein utilization (ANPU) survival rate, gross product ion with the levels percentage of maggot in different diets treatment. Catfish fed on the diet treatment containing 100% maggots gave the lower in PER (1.46) , ANPU (24.37%) , survival rate and gross production, Catfish fed on the diet treatment containing 50% maggot + 50% pellet gave the best survival rate (88%) and fish fed on the diet treatment containing 25% maggot and 75% pellet gave higher in final weight and highest in product ion respectively. |
| Year | 1993 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Little, David C. |
| Examination Committee(s) | Yakupitiyage, Amararatne ;Lin, Chang Kwei ;Sununthar Setboonsarng |
| Scholarship Donor(s) | The Government Switzerland |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1993 |